BREAKING: Scanner: Possible MIT shooter may be connected to earlier robbery: 200lbs, 5'11 with a small gun

MIT issued an emergency alert at 10:48 on Thursday night reporting shots fired on the university campus. The school newspaper reports, "Shots fired near 32 Vassar St (Stata Center), police officer down. Please stay inside." That report is backed up by CBS News's Bonney Kapp who reports hearing "officer down" on the police scanner just before the MIT alert went out. For now, details are scarce, but the suspect is on the loose and considered armed and extremely dangerous.
This is a developing story. We'll update you as new information comes in.